protected void btnUnSubscription_OnClick(object sender, EventArgs e) { SendService sendService = new SendService(); string endUserId = string.Empty; try { endUserId = Request.QueryString["endUserId"].ToString(); } catch (Exception exception) { endUserId = ""; } string query = @"SELECT subscriptionId FROM[DPDP].[dbo].[tblBase] where ServiceId = '13' and MSISDN = '" + endUserId + "' and RegStatus = 1"; object subscriptionId = new CDA().getSingleValue(query, "DPDP"); string json = new JavaScriptSerializer().Serialize(new { Id = "", servicekey = "afef69c7cbbe4b55bb10d47dd5969677", endUserId = endUserId, subscriptionId = subscriptionId.ToString(), accesschannel = "WAP" }); sendService.Send("http://192.168.14.16/DPDPClient/api/Unsubscribe", json); Thread.Sleep(5000); Response.Redirect("~/Default.aspx"); }